WOEB: Rapid Setting of Wizard of Oz Experiments and Reuse for Deployed Applications

We describe an approach and an environment for setting up Wizard of Oz experiments to test multimodal interaction (through mobile devices) for multimedia content delivery. This is based on a metamodel and a reference client-server architecture, whose implementation is discussed. The approach allows progressive refinement of the Wizard of Oz environment into a deployed application, through the use of a single metamodel, to be progressively specialized, and a service-oriented approach which allows the substitution of implemented services to simulated ones. A visual interface is provided for the definition of the wizard interface, of the metadata relating content delivery and possible interactions on it, and of some aspects of the client interaction.